JIM WEST / SCIENCE PHOTO LIBRARY JIM WEST / SCIENCE PHOTO LIBRARY
Editorial use only.
Marijuana police test kit. Police officer in the USA holding a Duquenois-Levine field test kit that has shown the presence of marijuana. The substance was tested after being taken from a driver detained at a sobriety checkpoint. Field test kits can deliver false positive results. Photographed in June 2016, on Vegas Valley Drive, in Las Vegas, Nevada, USA.
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